3v4l.org

run code in 300+ PHP versions simultaneously
<?php $subject = 'Aaaafaba Bbab'; $ret = preg_replace_callback( '~[a]+~i', function ($match) { echo strlen(match[0]), ' matches for "a" found', PHP_EOL; }, $subject ); var_dump($ret); var_dump($subject); $ret = preg_replace_callback_array( [ '~[a]+~i' => function ($match) { echo strlen($match[0]), ' matches for "a" found', PHP_EOL; }, '~[b]+~i' => function ($match) { echo strlen($match[0]), ' matches for "b" found', PHP_EOL; } ], $subject ); var_dump($ret); var_dump($subject);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0200.00018.55
8.3.50.0140.00721.03
8.3.40.0040.01118.62
8.3.30.0140.00018.77
8.3.20.0070.00020.21
8.3.10.0070.00021.95
8.3.00.0040.01117.66
8.2.180.0100.01316.35
8.2.170.0070.01022.96
8.2.160.0030.01020.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0090.00017.63
8.2.110.0120.00619.18
8.2.100.0070.00417.78
8.2.90.0070.00019.05
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0040.00417.91
8.2.50.0050.00318.07
8.2.40.0070.00019.39
8.2.30.0050.00320.60
8.2.20.0000.00717.55
8.2.10.0050.00217.90
8.2.00.0030.00617.84
8.1.280.0070.00725.92
8.1.270.0070.00722.11
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00322.07
8.1.230.0100.00020.94
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0040.00417.10
8.1.180.0080.00018.10
8.1.170.0030.00518.57
8.1.160.0020.00521.84
8.1.150.0040.00418.61
8.1.140.0040.00417.27
8.1.130.0030.00317.50
8.1.120.0030.00617.33
8.1.110.0030.00317.38
8.1.100.0050.00217.16
8.1.90.0070.00417.21
8.1.80.0040.00417.14
8.1.70.0030.00517.32
8.1.60.0040.00417.48
8.1.50.0030.00517.34
8.1.40.0070.00017.27
8.1.30.0030.00517.55
8.1.20.0000.00817.52
8.1.10.0040.00417.42
8.1.00.0030.00517.29
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0030.00318.41
8.0.270.0080.00017.17
8.0.260.0030.00317.16
8.0.250.0050.00316.88
8.0.240.0070.00016.92
8.0.230.0020.00516.93
8.0.220.0030.00316.80
8.0.210.0030.00416.84
8.0.200.0050.00216.86
8.0.190.0080.00316.82
8.0.180.0040.00416.77
8.0.170.0000.00816.90
8.0.160.0070.00016.79
8.0.150.0040.00416.81
8.0.140.0040.00416.73
8.0.130.0000.00613.31
8.0.120.0060.00316.88
8.0.110.0000.00716.71
8.0.100.0050.00316.68
8.0.90.0030.00316.75
8.0.80.0090.01216.89
8.0.70.0050.00216.64
8.0.60.0040.00416.82
8.0.50.0000.00716.93
8.0.30.0070.00816.99
8.0.20.0140.00617.40
8.0.10.0000.00716.72
8.0.00.0060.01216.72
7.4.330.0000.00515.08
7.4.320.0040.00416.73
7.4.300.0000.00716.73
7.4.290.0000.00716.73
7.4.280.0030.00616.79
7.4.270.0080.00016.74
7.4.260.0020.00516.75
7.4.250.0080.00016.60
7.4.240.0040.00416.66
7.4.230.0000.00716.69
7.4.220.0040.01916.88
7.4.210.0150.00316.67
7.4.200.0050.00216.80
7.4.160.0120.00616.78
7.4.150.0150.00417.40
7.4.140.0100.01017.86
7.4.130.0120.00716.82
7.4.120.0030.01416.88
7.4.110.0090.00916.78
7.4.100.0130.00516.61
7.4.90.0150.00916.77
7.4.80.0060.01219.39
7.4.70.0100.00716.84
7.4.60.0120.00616.60
7.4.50.0030.00316.66
7.4.40.0070.01416.44
7.4.30.0090.01016.81
7.4.00.0070.00715.18
7.3.330.0030.00313.58
7.3.320.0000.00513.36
7.3.310.0030.00316.38
7.3.300.0030.00316.45
7.3.290.0100.00716.48
7.3.280.0070.01016.53
7.3.270.0030.01517.40
7.3.260.0120.00916.50
7.3.250.0130.00816.61
7.3.240.0110.00616.69
7.3.230.0060.01216.63
7.3.210.0160.00716.69
7.3.200.0160.00516.63
7.3.190.0090.00916.50
7.3.180.0040.01216.66
7.3.170.0110.01116.75
7.3.160.0100.00716.52
7.3.120.0140.00315.16
7.3.110.0040.01214.81
7.3.100.0060.01214.61
7.3.90.0070.00714.73
7.3.80.0080.00415.04
7.3.70.0100.00615.16
7.3.60.0050.00514.85
7.3.50.0100.00015.00
7.3.40.0040.01114.96
7.3.30.0080.00315.01
7.3.20.0030.01016.84
7.3.10.0040.00816.68
7.3.00.0070.00716.83
7.2.330.0120.00616.71
7.2.320.0190.04716.71
7.2.310.0120.00616.93
7.2.300.0080.00917.05
7.2.290.0060.01516.80
7.2.250.0000.01515.11
7.2.240.0070.01515.18
7.2.230.0100.00615.34
7.2.220.0030.01115.19
7.2.210.0030.01015.15
7.2.200.0100.00315.11
7.2.190.0000.00915.25
7.2.180.0040.01115.12
7.2.170.0110.00415.13
7.2.160.0100.00315.36
7.2.150.0100.00317.01
7.2.140.0070.00716.99
7.2.130.0000.01817.14
7.2.120.0060.00617.12
7.2.110.0030.01117.09
7.2.100.0060.00917.04
7.2.90.0060.00617.27
7.2.80.0000.01217.10
7.2.70.0000.01416.73
7.2.60.0070.00817.15
7.2.50.0030.00916.86
7.2.40.0030.00617.14
7.2.30.0040.00817.18
7.2.20.0060.01216.98
7.2.10.0060.00917.28
7.2.00.0050.00618.43
7.1.330.0110.00715.91
7.1.320.0060.00615.80
7.1.310.0070.00716.12
7.1.300.0060.00315.87
7.1.290.0000.00915.97
7.1.280.0090.00616.04
7.1.270.0030.00916.07
7.1.260.0030.01216.00
7.1.250.0000.01116.00
7.1.240.0090.00615.73
7.1.230.0060.00616.03
7.1.220.0100.00315.81
7.1.210.0060.00315.89
7.1.200.0050.00715.79
7.1.190.0040.00715.83
7.1.180.0030.01015.55
7.1.170.0100.00316.06
7.1.160.0090.00915.50
7.1.150.0030.01015.77
7.1.140.0040.00715.77
7.1.130.0090.00615.96
7.1.120.0000.01615.66
7.1.110.0030.01316.09
7.1.100.0050.00817.13
7.1.90.0060.00915.94
7.1.80.0000.01116.08
7.1.70.0050.00416.59
7.1.60.0080.00517.58
7.1.50.0020.01216.59
7.1.40.0110.00415.95
7.1.30.0000.01315.90
7.1.20.0000.01415.68
7.1.10.0120.00615.94
7.1.00.0090.03719.09
7.0.330.0060.00615.24
7.0.320.0060.00615.55
7.0.310.0060.00915.26
7.0.300.0030.01015.32
7.0.290.0070.01015.25
7.0.280.0060.00315.44
7.0.270.0030.01015.14
7.0.260.0060.01015.39
7.0.250.0110.00415.62
7.0.240.0040.01115.51
7.0.230.0030.00715.43
7.0.220.0060.00615.33
7.0.210.0090.00615.54
7.0.200.0030.01016.10
7.0.190.0000.01415.31
7.0.180.0100.00315.61
7.0.170.0070.00415.27
7.0.160.0070.00715.50
7.0.150.0090.00915.62
7.0.140.0080.00415.57
7.0.130.0030.01215.59
7.0.120.0100.00315.45
7.0.110.0090.00615.62
7.0.100.0030.01015.54
7.0.90.0040.00715.64
7.0.80.0060.00615.54
7.0.70.0040.01115.58
7.0.60.0050.02817.73
7.0.50.0020.03116.74
7.0.40.0050.03116.80
7.0.30.0090.02916.90
7.0.20.0200.02716.85
7.0.10.0100.04216.85
7.0.00.0060.02516.83
5.6.400.0060.00614.43
5.6.390.0090.00014.32
5.6.380.0080.00514.62
5.6.370.0000.00814.64
5.6.360.0000.01514.47
5.6.350.0060.00614.39
5.6.340.0070.00714.67
5.6.330.0090.00614.57
5.6.320.0040.01114.32
5.6.310.0040.01214.45
5.6.300.0000.01514.58
5.6.290.0030.01014.22
5.6.280.0080.03617.55
5.6.270.0090.00614.44
5.6.260.0000.01014.52
5.6.250.0040.00714.24
5.6.240.0070.00714.38
5.6.230.0080.00314.46
5.6.220.0120.00614.35
5.6.210.0060.03117.32
5.6.200.0050.03816.38
5.6.190.0070.04917.39
5.6.180.0120.03117.37
5.6.170.0140.01917.41
5.6.160.0000.02917.42
5.6.150.0020.03416.40
5.6.140.0030.02516.25
5.6.130.0050.04216.28
5.6.120.0080.04717.82
5.6.110.0070.04917.76
5.6.100.0040.04217.69
5.6.90.0070.04817.54
5.6.80.0040.02617.38
5.6.70.0000.01214.26
5.6.60.0120.00314.40
5.6.50.0030.01014.38
5.6.40.0070.00714.38
5.6.30.0030.00614.21
5.6.20.0070.00814.03
5.6.10.0120.00014.26
5.6.00.0090.00314.09
5.5.380.0090.00614.02
5.5.370.0060.00314.29
5.5.360.0050.00814.02
5.5.350.0040.03917.10
5.5.340.0100.03016.13
5.5.330.0060.02617.18
5.5.320.0100.02717.24
5.5.310.0250.03517.22
5.5.300.0070.04516.05
5.5.290.0100.03815.93
5.5.280.0070.04917.27
5.5.270.0050.03417.22
5.5.260.0050.04817.33
5.5.250.0020.03017.19
5.5.240.0150.03917.14
5.5.230.0110.00913.79
5.5.220.0080.01113.88
5.5.210.0030.00913.90
5.5.200.0110.00314.04
5.5.190.0090.00413.93
5.5.180.0040.01113.96
5.5.170.0030.01014.09
5.5.160.0040.01114.03
5.5.150.0060.00914.04
5.5.140.0060.00914.08
5.5.130.0000.00813.61
5.5.120.0070.00713.82
5.5.110.0080.00813.91
5.5.100.0080.00813.89
5.5.90.0030.01013.70
5.5.80.0080.00813.85
5.5.70.0120.00314.02
5.5.60.0110.00313.83
5.5.50.0030.01013.90
5.5.40.0070.00714.09
5.5.30.0080.00413.75
5.5.20.0000.01713.72
5.5.10.0030.01214.21
5.5.00.0070.00713.84
5.4.450.0330.03315.24
5.4.440.0070.03715.12
5.4.430.0100.03115.21
5.4.420.0350.03315.00
5.4.410.0430.02515.29
5.4.400.0420.03815.00
5.4.390.0230.03814.99
5.4.380.0190.03215.00
5.4.370.0140.03314.99
5.4.360.0350.04314.79
5.4.350.0280.04214.87
5.4.340.0100.04015.02
5.4.330.0030.00310.88
5.4.320.0230.03614.91
5.4.310.0420.03214.81
5.4.300.0400.03715.00
5.4.290.0080.03814.85
5.4.280.0200.04014.94
5.4.270.0460.03814.88
5.4.260.0400.03514.93
5.4.250.0430.04014.85
5.4.240.0450.03014.75
5.4.230.0400.03014.86
5.4.220.0490.04014.85
5.4.210.0400.04014.79
5.4.200.0370.04014.81
5.4.190.0480.03815.10
5.4.180.0360.03815.03
5.4.170.0430.03314.95
5.4.160.0450.03514.90
5.4.150.0510.03414.97
5.4.140.0330.04013.71
5.4.130.0300.03313.69
5.4.120.0450.03513.53
5.4.110.0390.04113.47
5.4.100.0320.04013.59
5.4.90.0330.03013.64
5.4.80.0380.03313.59
5.4.70.0100.03413.48
5.4.60.0020.02013.69
5.4.50.0040.03613.70
5.4.40.0180.03713.56
5.4.30.0130.04313.53
5.4.20.0170.03713.63
5.4.10.0080.00310.74
5.4.00.0040.00810.78

preferences:
52.97 ms | 401 KiB | 5 Q